Twisting frame



Se t. 25-, 1923;

c. DE sH-A|E TwIsTi NG FRAME Filed Feb. 21. 1922 Patented Sept. 25, 1923.

UN 'EED S're'rssrar as *eFFE e; f

ooirrn nnsnAIEs, OF CENTRAL FALIIS, n-nonn rsLAiin.

TWISTING FRAME.

Application filed February 21; 1922. I sriaifno. sea 3115f]; I:-

To all whom it may concern Be it known thatl, Golan DnsHArEs, a citizen of the United States, residing at Gentral Falls, inthe county of Providence and State of Rhode Island, have invented certain new and useful Improvements in T wisting Flames, of which the following is a specification. I a 1 Thisinvention' relates to an improved f thread-severing attachmentfor twistingframes, and has for its objectjto provide means" wherebywhen the thread on the de; livery side of the draft rolls is broken this attachment will act to sever the thread on the supply side of said rolls to prevent further drawing of the thread from the supplyspools by said rolls and the device also serves to clamp the severed end of the thread to prevent it'from'being engaged and drawn out by adjacent running threads. I 7

With these'and other objects in view, the invention consists-of certain novel features of construction, as'will be more fully described,and1 particularly pointed out in the appended-claims, 7 g

In" the accompanying drawings? Figure 1. is aside elevation partly in sec tion showing the tension-lever as engaging.

and feeling of the running thread a's-itjis drawn from the supply-spool and wound upon the bobbin, also showing'the severingand damping mechanism held inanoperative'po-sition by the-tension-device.

Figure 2 is a front elevation of the upright cutting and clamping spindle supported in raised position and show ngthe thread-receiving slot, the clamping ring and the cooperating thread-shearing bearing member also showing the mouth of the thread-entering slot ascoveredby the clamp-' 1 ingring. Q I

Figu'reS is aside elevation-of the spindle llyup through the guide eye 12 over the draft-rolls 18' and 1 4: andfwoun'd'npon a Itis found in practicelvery desirableparr V "ticularly in thread-twistingframes and the i like, wherethe thread is drawn'from a supply spoolto be'moistened andw'ound upon" a bobbin, to provide means forfeeling of the thread and applying suffi cient tension there: to to break the thread iffit is not ofthe'ff required. I strength and *if said threa'dpis' broken to provide means forliinmediately" V severing the threadon the opposite side or the draft rolls {to prevent more thread from being drawn from the 'spool by the rolls until the broken ends are ,tied together." It 15 also found to be advantage to clamp and bind the severed end ofthis thread to prevent it from engaging adjacent threads f or being wound and accumulated upo nthe I draft-rolls or other'moving portion ofthe 1 scription of one means by which this result may be accomplished I i i machine; and the following is adetailedde- In thread twi stingmachines of this. Char spool 10 downthroughfa moistening tank acter the? thread is drawn fromza supply driven bobbin 15', and it is foun'dyto' be of advanta'ge to provide means for testing the strength' of thethread'during it s'running from the supply spool to the bobbin and if it is found to be too weak, to break the same ata point between the rolls and the bobbin to be subsequently pieced up,-.ia'nd at the same time to clamp the thread onf the opposite side of'the rolls to prevent thread from being-drawn from the after the break occurs.

I'have provided an improvec only seventhe" thread on the supply side to prevent itfrom being wound or accumuspool I I H fmeans for v accomplishing this purpose which will not of the rolls but also clamp this severed end- 7 shown in Figure? and showing the tension -lated about the rolls or from becoming engage the "running thread.

twisted and snarled with a'd'acent runnin 3 o threads, which mechanism comprisesessentially a "bearing memberlG clamped to the frame portion 1-7 .iof'the machine inwhich bearing isfad justably mounted, byfa set screw 18, a sleeve 19 at the lo'wer' end of whichxis pivoted at '20 'the'tensio-n feeler lever 21 the engaging end ofthisfeel er lever being provided with anfendwisefadii justablefeeler member -22-which is clampedat 23 to thefarm 21 to be set to properly V 1'10 This feeler lever is provided with a rearwardly-extending arm 24 on the opposite side of theipi'vojt 20, which arm is a'daptedto carry a" pluralityof weights 25, which may be varied in number and position to apply the proper tension to threads of different sizes to cause them to break if not of required strength.

This lever is provided with a earn-shaped arm 26 extending into the slot 27 of the sleeve 19, which arm is provided with a stop finger 28 resting against thev outer surface of the sleeve to support the lever in proper working position. In this sleeve I have mounted a vertically-movablespindle, 29 provided with a weight 30 at its upper end and arranged at its ,lower end 31 to rest upon and b e supported by the upper face of the'cam'arm 26. i

. This spindle is provided with a vertical slot 32'through which the thread 33 passes in running from the guide eye 12 over, the

draft roll 13.

Communicating with thisvertical slot is a laterally and downwardly extending entering slot 34Lv through which the bight of the thread is passed into the main slot 32 by raising the spindle to lift themouth of the slot above thering: presently described,

spindle drops upon being released its supporting cam 26, thereby preventing more thread from being drawn from the spool by the draft rolls l3 and 14 when the thread is broken the tension feeler 21, I have also provided about thisspindle a collar member 39 which has aninternal diameter of sufficient size to just permit the thread to be drawn down therebetween and or clamp the thread by'the quick downward severing motion of the weight-spindle thereby preventing'the free end of the thread from getting tangled with the adjacent running threads. 7

Similar collars 39 with different sized holes thereinmay be employed to receive threads of different sizes which may be run through the machine. 7 v r Bythis construction above described it will be seen that when the thread is broken by the tensionfeeler at a point between the draft-rolls and the bobbin. the weighted end of the lever which has been retained in raised position by the tensien of the thread on its opposite end now immediately drops and Withdraws the cam-arm 26 from beneath the endSl of the spindle 29 which under the action of its heavy weight 30 imme 'diately drops causing its sharp edge 37 to cooperate with thesharp edge 38' of the sleeve. 19 to sever the thread on the supply side of the draft rolls and prevent further drawing of the. thread by said rolls from the'spools also the dropping of the spindle carries the bight ofthe threaddown through thelarge collar 39 clampingit therein to prevent its end fromengaging the adjacent threads or other running parts ofthe machine,

fter thethread has been broken and 1 during the piecing up operationit is found 1 to be desirable to lift and hold theithread severin rs indie 29 in its raised osition.

To accomplish this in a simple and effective way, I haveprovided a detentiO which is" pivoted at ll and provided with a hook ends 42 to be swung around and engagetheleverr 21 when in operative positiontliere-by-re-,1

taining this lever and the spindle29 inthis operative position during the time that; 7 the broken thread isbeing re-threadedand its endsknotted, after which this detent may i be swung back to release. the lever to fun tion. v V The foregoing description is directed solely towards the constructionillustrated,

but Idesire it to be understood thatgl reselwe the privilege of resorting to all the mechan -g,

ical changes to which the device is SDSCQP; tible, the invention; being defined and liin ited only by the terms ofthe v appended; 3

claims.

I claim 1. In a twistingframehavingdraftrolls,

11051-11 a thread 'tensioning' lever weightediat one,

end a g by h thr adra th t nzi ,end on the delivery sideof said roll s ;to hold said lever, in normal posit ion, a weighted upright spindle having thread severing and no as clamping means located onthesupply side of said rolls and caincontrolled by said lever for normallyretaining said spindle in inoperative position whereby the :breaking i of said thread operatessaid lever andrcam to release said spindle to function.

2. In a twisting frame r. having v thread-- draft rolls, a tension leverwithgweights on,

thread on the delivery. side, of said rolls; an

upright weighted spindle thread severing clamping meanscontrolled by said and one end pivotally mounted to engage the r spindle and normallysupported-in inop era tive position by said tension-lever engaging said thread whereby the breaking of said; thread on the :delivery .side of saidiroll's 2 causes said severing andclamping-means to function.

3. In a twisting frame having draft r011 Y 3 a tension lever with weights on oneendflildx through which the runnin thread is led, 00-- operating severing and e amping members in which said spindle is slidably mounted, said spindle being normally supported in inoperative position in said members by the tension of the thread upon said lever, whereby the breaking of said thread'releases said lever to move under action of its weights and release said spindle to descend and function.

4:. In a twisting frame having draft rolls, a Weighted lever for tensioning the thread on the delivery side of said rolls, an upright weighted spindle having threa'drsevering and clamping means adapted 'to engage the thread on the supply side of said rolls, a cam on said lever normally supporting said spindle in inoperative position whereby the breaking of the thread releases said lever and cam to move under action of its weight to release said spindle to function. V V

5. In a twistingframe having draft rolls,

a weighted lever for tensioning the thread on the delivery side of said rolls, an upright weighted spindle having thread-severing and clamping means adapted to engage the thread on the supply side of said rolls, a oam'on said lever normallysupporting said spindle in inoperative positionwhereby the breaking of the thread releases said lever and cam to move underaction .of its weight to release said spindle to function, and

means for retaining said lever and spindle in operative position during a re-threading 7 operation;

6. In a twisting frame having draft rolls, 7 a weighted lever for tensioning the thread on the delivery side of said rolls and having a cam-shaped supporting member, a vertij cally movable spindle normally supported in 7' "inoperative position by its lower end on said eam, said spindle having a severing edge beneath which the thread is drawn, a loose ring on said spindle and a cooperating severing edged bearing sleeve for said spindle, whereby the'breaking of the thread releases said lever to -withdraw said "cam and permit the spindle to 'drop'to severthe thread and bind its'severedend in said ring.

In testimony whereof I aifix my signature;

COMEzDESHAIES. 

